Powder dispensing container structure



Dec. 25, 1956 J. HENCHERT POWDER DISPENSING CONTAINER STRUCTURE Filed Nov. 9, 1953 Fig.1.

v INVENTOR Jo/zn Hana/2,677

4850M I m ATTORNEYS United States Patent POWDER DISPENSING CONTAINER STRUCTURE John Henchert, River Forest, Ill., assignor to Continental Can Company, Inc., New York, N. Y., a corporation of New York Application November 9, 1953, Serial No. 390,843

4 Claims. (Cl. 222486) The invention relates generally to container structures, and more particularly to containers adapted for packaging and dispensing powdered materials, and it primarily seeks to provide a novel structure in which provision is made for preventing inadvertent sifting of powder from the container.

Containers having provision for dispensing powered material therefrom are known, but it is quite common for such container structures to embody the objectionable feature of permitting powder to shift from interior portions inadvertently. It is a purpose of the present invention to provide a container structure including a body, a top secured on the body and having a large area central raised or plateau portion equipped with dispensing openings, and a cover mounted on the container and having a large area central depressed portion held in tension and tightly against the underlying plateau portion in a manner for preventing inadvertent sifting of powder from the plateau openings outwardly between said tightly engaging large area portions.

Another object of the invention is to provide a container structure of the character stated wherein the top is secured on the body by a double roll seam and the cover is readily mountable and removable and has a notched skirt embracing and snapped under the seam.

Another object of the invention is to provide a container structure of the character stated wherein the cover is rotatably mounted on the top closure seam and has a dispensing opening therein selectively presentable over' multiple arcuately spaced dispensing openings in the underlying container top.

Another object of the invention is to provide a container structure of the character stated wherein the cover has a powder sift preventing sealing compound in the channel thereof which embraces the top closure seam, said compound engaging over the upper extremity of the seam.

Another object of the invention is to provide a container structure wherein the intimately contacting large area central portions of the cover and the container top have complementary interfitting rib and groove means therein surrounding the dispensing openings, the rib means engaging a sealing compound in the groove means and preventing sifting of powder outwardly beyond the rib and groove means should any thereof work its way into a position between said intimately contacting surface portions.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawing.

In the drawings:

Figure 1 is a side elevation of a container embodying the invention, parts being broken away and in section.

Figure 2 is a plan view, the rotatable snap-on cover being shown as including a dispensing opening and the same being turned out of registering relation to the selective dispensing aperture and slot knock-outs of the underlying container top.

Figure 3 is an enlarged fragmentary sectional view showing the sealing means for preventing outward sifting of powder between the rotatable snap-on cover and the underlying cantop.

Figures 4 and 5 are enlarged fragmentary plan views showing the round knock-out openings and the kidney shaped knock-out opening respectively.

In the example of embodiment of the invention herein disclosed, the improved container structure includes a body 5 having a bottom 6 conventionally secured thereon, and a main top closure 7 secured thereon by a conventional double roll seam 8 of the square type.

The top 7 has a raised flat central portion or plateau 9 surrounded by an annular counter-sink 10, and said plateau portion is equipped with an arcuately arranged series of round weakened knock-outs 11 including unbroken hinge portions 12. A single kidney-shaped weakened knock-out 13 is provided at the opposite side of the top plateau and includes an unbroken hinge portion 14. It will be apparent by reference to Figure 2 that the series of knock-outs 11 and the diametrically oppositely disposed elongated knock-out 13 are arranged on a circle concentric to the center of the top 7, and these knock-outs have tool receiving indents 15 in which to receive a tool employed in depressing and opening said knock-outs and which serve to prevent slipping of the tool during this process. It will be apparent that the unbroken hinge portions 12 and 14 permit downward swinging of the knock-outs in the formation of the desired openings without permitting the knock-out portions to fall into the interior of the container.

A cover 16 having a snap on skirt 17 is readily mountable and removable from the top portion of the container, the skirt serving to embrace the same in the manner clearly illustrated in Figures 1 and 3. The skirt is notched as at 18 at equidistantly spaced points thereabout and includes a re-bent lower edge extremity 19 for facilitating the snapping on thereof. The cover includes a depressed flat central portion 20 and the notched skirt 17 serves to secure the cover on the seam 8 in a manner for holding the cover in tension with its depressed flat central portion 20 intimately contacting against the plateau 9 of the top 7 throughout the whole large area thereof. The fiat cen- "ice tral portion 20 of the cover may be equipped with a is rotatable on its seam mounting so that the dispensing opening '21 can be brought intoselectiv'e registry with the series of openings 11 or with the single opening 13 in order to permit dispensing of powder from the interior of the container.

The feature of holding the cover in tension with the opposing large area central portions 9 and 20 in intimate contact throughout the whole area thereof substantially assures against outward sifting of powder into the annular countersink 10. In order to additionally assure against out sifting of powder, the cover may be provided with sealing compound 22 in the channel thereof overlying and embracing the seam 8, the sealing compound pressing tightly against the top extremity of the seam and assuring against sifting of powder outwardly about the seam.

In order to additionally assure against outsifting of powder the top 7 may be equipped with a depressed annular bead 23 having sealing compound 24 therein engaged by a depressed sealing bead 25 provided in the cover.

Some "powdered materials are deliquescent, bleach powder-being an example, and these mustbe protected from the air as much as possible. When the container structure is employed in the packaging of suchpowdered materials, it may befound desirable 'tofdispense .with "the opening 21inthe cover so aslto completely closethe dispensing opening in the top "7'from ready ingress of air except when it is actually desired to dispensethepowder, at which time the cover will be removed from its snapon mounting on the seam 8. It is'to be understood also that the seals provided at22 over the seam 8, or inwardly thereof at 24 in the annular bead arrangement are optional and maybe used collectively, or either thereof to the exclusion of the other.

While one form of the invention has been shown for purposes of illustration, it is to be clearly understood that various changes in the details of construction and arrangement of parts may .be made without departing from the spirit and scope of the invention as definedin the appended claims.

I claim:

'1. A container for packagin'g and dispensingpowdered materials comprising a body, a top secured on the body and having a'largetareacentral raised or plateauportion equipped wtih dispensing openings, and a cover mounted on'the body over the'top and having alarge area central depressed portion held in tension and tightly against the underlying plateau portion in a manner for preventing inadvertent sifting of powder from the plateau openings outwardly between said tightly engaging large areaportions, saidtop bein seam secured on the "body and said cover beingrotatably mounted on the seam and having a dispensing opening therein selectively presentable over multiple arcuately spaced dispensing openings in the underlying container topby turning of the cover about said seam, said cover including a channel embracing said seam and having therein a sealing compound engaging on the seam and preventing outward sifting of powder from between the contacting large area centralrportions of the cover and the underlying top.

2. A container 'for packaging and dispensing powdered materialscomprising a body, atop secured on the body andhaving a large area central raised or plateau portion equipped with dispensing openings, and a cover mounted on the bodyover the'top and having a large area central depressed portion'held in tension and tightlyagainst the underlying plateau portion in a manner'for preventing inadvertent sifting of powder from the plateau openings outwardly between saidtightly engaging large area pertions, saidtopbeingsecured 'on' the body by a double roll seam and'said cover being readily mountable on and removable therefrom'and having avnotche'd skirt embracing and snapped under "the seam, said .,cover including a channel embracing said seam andhaving'therein a sealing'compound engaging on theseam and preventing outward sifting of powder from between the contacting large area central-portions of the-cover and the underlying top.

3. A container for packaging and dispensing powdered materials comprising a body, a top secured on the body and having a large area central raised or plateau portion equipped with dispensing openings, and a cover mounted on the body over the top and having a large area central depressed portion held in tension and tightly against the underlying plateau portion in a manner'for preventing inadvertent sitting of powder .from the plateau openings outwardly between said tightly engaging large area portions, said top being seam secured on the body and said cover being rotatably mounted on the seam and having a dispensing opening therein selectively presentable over multiple arcuately spaced dispensing openings in the underlying container top by turning of the cover about said seam, the contacting large area central portions of said cover and the underlying top having complementary interfitting rib and groove means therein surrounding the dispensing openings, the rib means engaging a sealing compound in the groove means and preventing sifting of powder outwardly'beyond the rib and groove means from between said contacting large area portions.

4. A container for packing and dispensing powdered materials comprisinga body, a top secured on the body and having a large area central raised or plateau portion equipped with dispensing openings, and a cover mounted on the body over the top and having a large area central depressed portion held in tension and tightly against the underlying plateau portion 'in a manner for preventing inadvertent sitting of powder from the plateau openings outwardly'between said tightly engaging large area portions, said topfbeing seam secured on the body and said cover'being rotatably mounted on the seam and having a dispensing opening therein selectively presentable over multiple arcuately spaced dispensing openings in the underlying container top by turning of the cover about said seam, the contacting large area central portions of said cover and theunderlying top 'having complementary interfitting rib andgroove means therein surrounding the dispensing openings, the rib means engaging a sealing compound in the groove means and preventing sifting of powder outwardly beyond the rib and groove means from between said contacting large area portions, and said cover including a channel embracing the seam and havingtherein a sealing compound engaging on the seam as a supplementary powder sift preventing means.

References Cited in the file of this patent UNITED STATES PATENTS 1,449,811 Dacey Mar. 27, 1923 1,708,582 Kuechenmeister Apr. 9, 7.1929 2,551,203 "Wheaton 'May 1, 1951 

